Synnefo

/*

 * Copyright 2009 Electronic Business Systems Ltd.

 *

 * This file is part of GSS.

 *

 * GSS is free software: you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation, either version 3 of the License, or

 * (at your option) any later version.

 *

 * GSS is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with GSS.  If not, see <http://www.gnu.org/licenses/>.

 */

package gr.ebs.gss.server;

import gr.ebs.gss.client.exceptions.ObjectNotFoundException;

import gr.ebs.gss.client.exceptions.RpcException;

import gr.ebs.gss.server.domain.User;

import java.io.IOException;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.apache.commons.logging.Log;

import org.apache.commons.logging.LogFactory;

/**

 * The servlet that handles user policy acceptance.

 *

 * @author past

 */

public class Policy extends BaseServlet {

        /**

         * The request parameter name for the acceptance flag.

         */

        private static final String ACCEPT_PARAM = "accept";

        /**

         * The request parameter name for the original query string to the jsp.

         */

        private static final String QUERY_PARAM = "queryString";

        /**

         * The request parameter name for the username.

         */

        private static final String USER_PARAM = "user";

        /**

         * The serial version UID of the class.

         */

        private static final long serialVersionUID = 1L;

        /**

         * The logger.

         */

        private static Log logger = LogFactory.getLog(Policy.class);

        @Override

        public void service(HttpServletRequest request, HttpServletResponse response) throws IOException {

                String queryString = request.getParameter(QUERY_PARAM);

                String accept = request.getParameter(ACCEPT_PARAM);

                String username = request.getParameter(USER_PARAM);

                response.setContentType("text/html");

                if (username == null) {

                        response.sendError(HttpServletResponse.SC_NOT_FOUND);

                        return;

                }

                User user = null;

                try {

                        user = getService().findUser(username);

                        if (user == null) {

                                response.sendError(HttpServletResponse.SC_NOT_FOUND);

                                return;

                        }

                        if ("on".equalsIgnoreCase(accept))

                                user = getService().updateUserPolicyAcceptance(user.getId(), true);

                        response.sendRedirect(request.getContextPath()+ "/login?" + queryString);

                } catch (RpcException e) {

                        String error = "An error occurred while communicating with the service";

                        logger.error(error, e);

                        response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, error);

                        return;

                } catch (ObjectNotFoundException e) {

                        String error = "User " + username + " was not found";

                        logger.warn(error, e);

                        response.sendError(HttpServletResponse.SC_NOT_FOUND, error);

                        return;

                }

        }

}